142933

Appears in sequences

• Molien series of 4-dimensional representation of u.g.g.r. #9.at n=34A013977
• a(n) = smallest number k such that five consecutive prime numbers prime(n), prime(n+1), prime(n+2), prime(n+3) and prime(n+4) are divisors of k, k+1, k+2, k+3, and k+4 respectively.at n=3A180100
• a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(4*k,k) / (3*k + 1).at n=8A346664